<!doctype html>
<html>
<head>
    <meta charset="utf-8">
    <title>按键说明</title>
    <style>
        .container {
            width: 60%;
            margin: 10% auto 0;
            background-color: #f0f0f0;
            padding: 2% 5%;
            border-radius: 10px
        }

        ul {
            padding-left: 20px;
        }

            ul li {
                line-height: 2.3
            }

        a {
            color: #20a53a
        }
    </style>
</head>
<body>
    <div class="container">
        <h1>按键说明</h1>
        <h3>按键说明：手机端默认触屏，电脑端按键说明如下</h3>
        <ul>
            <li>上 W,下 S,左 A,右 D</li>
            <li>A J,B K,AA Z,BB X</li>
            <li>Start(开始) Enter(回车),Select(选择) Ctrl</li>
      </ul>
    </div>
</body>
</html>